Firmware/Drivers for w1100z/w2100z

Hi all,

I'm looking for the impossible to find .iso of the 2.5 supplement CD
for the w2100z dual Opteron workstation. Would like to update my BIOS
and having drivers available can't hurt either. Struck out with
archive.org and Google. Can anybody help (or at least verify the
actual name of the .iso image)?

Thanks in advance!